John garvey



J. GARVEY.

Annunciator for Hotels.

Patented Nov. 19, 1850.

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UNITED STATES PATENT OFFICE.

JOHN GARVEY, OF

NE\V YORK, N. Y.

ANNUNCIATOR OR BELL TELEGRAPH.

Specification of Letters Patent No.

T 0 all whom it may concern.

Be it known that I, JOHN GARVEY, of the city and county of New York, andState of New York, have invented certain new and useful Improvements inthe Annunciator for Hotels, &c., and I do hereby declare the followingto be a full and clear description thereof, reference being had to theannexed drawings making part of this specification.

The nature of my invention consists in the arrangement and combinationof a three sided bar turning on pins or studs inserted into a suit-ableframe and suspended by means of helical springs, in a position toreceive the action of aseries of levers or hammers to which the wiresare attached said levers or hammers having a common fulcrum, and havingattached to each of their short or curved ends, pendulums, the saidsuspended bar being made to act on the bell or bells by means of thelevers and springs to give the necessary warning or summons, another barbeing arranged be tween the bell and fulcrum of the hammers and parallelto the latter against which the near ends of the hammers strike forarrest-- ing the descent of the said rear ends, and causing them to turnthereon, and slightly lifting their front ends (there being oblongopenings or slots therein through which the fulcrum bar passes forallowing them to play up and down) and thus impart to the pendulum ofeach lever a vibratory movement by the sudden ascent of its front endthe pendulum indicating the number of the apartment whence the pull ofthe hand wire proceeded; and simultaneously therewith produce the alarm,by the descent of the rear end of the spring lever or hammer and with itthe suspended bar or striker, upon one, two or more bells; said barbeing instant-1y relieved from the bells, by the suspending springs, togive free vibration of the bell.

Figure 1 is an elevation of the front of the apparatus, showing thependulums and their corresponding numerals. Fig. 2, is an elevation ofthe rear thereof. Fig. 3 is a vertical transverse section one of thestrikers being elevated and in a position to give'the alarm, and actuatethe pendulum.

Similar letters refer to the same parts on the several figures.

The frame or case A of this annunciator 7,783, dated November 19, 1850.

may be made in any convenient manner, to support the several partsthereof.

B is a front plate made of brass or other suitable material providedwith a series of openings 0, 0, to permit and exhibit the vibratorymovement of the pendulums, when actuated by the pulling of the handwires, there being corresponding numerals on the plate directly beloweach opening, indicating the number of the pendulum and apartment fromwhich the summons emanated.

D, D, are the bells screwed to a horizontal bar E, near each end of theframe.

F, is the three sided bar or striker, sus

pended by its ends to a horizontal rod G,

or by screw bolts, and inclining downward to within about a quarter ofan inch of the bells, and made to serve the part of the tongue orstriker F of thesame. This suspended striker, is prevented from restingupon the bells by means of two helical springs H attached to the insidesof the frame, and which keep the striker elevated against the undersideof the spring levers, and by which it is relieved from the bells, theinstant the alarm is given.

I are the spring levers, arranged upon a common fulcrum J, near thefront plate B, and extending rearward directly over the long side of thestriker, and enlarged at their ends to have the effect of depressing thestriker, when actuated, and having their front ends curved downward, towhich are attached the pendulums K.

L'is a horizontal bar, placed beneath the spring levers I near thecenter thereof, and serving as a secondary or intermediate fulcrum, uponwhich the spring levers I, impinge, in their descent, and turn to actupon the striker, and vibrate the pendulum at the same time-there beingoblong openings or slots M in the levers, through which the fulcrum barJ passes to allow the front ends of said levers to rise, while the rearends are permitted to descend upo the striker, and thus impart therequired blow to the bells, the levers or hammers being instantlyrelieved from the striker by means of helical springs N, attached to thelevers and frame there being a series of holes in the levers to whichthe helical springs are changed to regulate the force of the levers uponthe striker. O, are the hand wires leading to the several apartments inthe building, and attached to the levers I, the numerals on the faceplate corresponding with the number of the rooms to which the hand wireslead and the pendulums of the spring levers.

The fulcrum bar J, is provided with a series of washers or rings P,placed between the spring levers I, for the purpose of holding them intheir proper places thereon, and at the same time permit them to riseand fall freely.

Having thus described my improvement in the annunciator for hotels, &c.,I wish it to be understood that I do not claim as my invention theexclusive use tothe pendulum for the purpose of indicating the number ofthe apartment on being actuated, simultaneously with giving the alarmfor calling the attention of the waiter, or other attendant, to themovement of the pendulum, but

hat I do claim as new, and of my own invention, and desire to secure byLetters Patent, is-

The combination and arrangement of the spring levers I, suspended bar orstriker F,

with the pendulums K, and bells D, for simultaneously indicating thenumber of the room, and calling the attention thereto, by giving thealarm; there being a secondary orintermediate fulcrum bar L againstwhich the spring lever I impinges on its descent increased by the springN by which the rear end is made to descend, and with it the suspendedstriker F- upon the bells D, and at the same time suddenly elevating thefront end of the lever I and imparting a vibratory movement to itspendulum-said spring lever I being provided with oblong openings orslots M through which the fulcrum bar J passes, for producing theaforesaid action of the spring levers, on its descent upon theintermediate fulcrum bar as described and represented.

In testimony whereof I have hereunto signed my name before twosubscribing witnesses.

JOHN GARVEY. WVitnesses WM. P. ELLIOT, A. E. H. JoHNsoN.

